WANG Yong, WANG Sha-sha, TIAN Zeng-shan, et al. Two-Stream Fusion Neural Network Approach for Hand Gesture Recognition Based on FMCW Radar[J]. Acta Electronica Sinica, 2019, 47(7): 1408-1415.
WANG Yong, WANG Sha-sha, TIAN Zeng-shan, et al. Two-Stream Fusion Neural Network Approach for Hand Gesture Recognition Based on FMCW Radar[J]. Acta Electronica Sinica, 2019, 47(7): 1408-1415. DOI: 10.3969/j.issn.0372-2112.2019.07.003.
To deal with the problem of easily being affected by illumination environment of the traditional optical camera based hand gesture recognition method and the incomplete spatial and lateral characteristics of the wireless based hand gesture recognition method
this paper proposes a frequency modulated continuous wave (FMCW) radar signal based two-stream fusion neural network (TS-FNN) for hand gesture recognition. Firstly
the spectrum of the IF signal is obtained by two-dimensional Fast Fourier Transform (2D-FFT)
the range and speed of the gesture are estimated
and the angle is calculated by the Multiple Signal Classification (MUSIC) method. Secondly
using the accumulation of three-dimensional parameters in time
a gesture action is mapped to a 32-frame range-speed matrix diagram and an angular-time map. Finally
TS-FNN is established for gesture feature extraction and classification. The experimental results show that compared with the existing methods
the TS-FNN method improves the average recognition accuracy by about 5%.